A. Gastrointestinal tract
B. Nasal mucosa
C. Lung
D. Skin
✅ The correct answer is option Gastrointestinal tract.
Medical
Which of the following is an acid-fast bacillus_____________?
A. Mycobacterium bacilli
B. Treponema pallidum
C. Neisseria gonorrhea
D. All of the above
✅ The correct answer is option Mycobacterium bacilli.
Subacute bacterial endocarditis is caused by_____________?
A. Streptococcus viridans
B. Haemolytic streptococci
C. Staphylococcus aureus
D. Nisseria
✅ The correct answer is option Streptococcus viridans.
Who first introduced solid media_______________?
A. Louis pasteur
B. Robert koch
C. Hensen
D. Ogston
✅ The correct answer is option Robert koch.
The single most important laboratory test for determining the virulence of staphylococci is___________?
A. Mannitol fermentation
B. Hemolysis of sheep erythrocytes
C. Detection of coagulase
D. The catalase test
✅ The correct answer is option Detection of coagulase.
The cell wall deficient bacteria_______________?
A. Rickettsiae
B. Mycoplasma
C. Chlamydiae
D. Ehrlichiae
✅ The correct answer is option Mycoplasma.
Rideal Walker test is used to determine the efficiency of the_____________?
A. Disinfectant
B. Moist heat sterilisation
C. Antibiotics
D. Dry heat sterilization
✅ The correct answer is option Disinfectant.
IgG antibodies have a half-life of approximately_______________?
A. 1 hour
B. 1 day
C. 1 week
D. 1 Month
✅ The correct answer is option 1 Month.
Highest incidence of anemia in the tropics is due to______________?
A. Hook worm
B. Thread worm
C. Ascaris
D. Guinea worm
✅ The correct answer is option Hook worm.
Type I hypersensitivity is mediated by which of the following immunoglobulins ?
A. IgA
B. IgG
C. IgM
D. IgE
✅ The correct answer is option IgE.